Railway air-brake drain-cup.



No. 680,330. Patented Aug. I3, 190i. P. JACOBSON.

RAILWAY AIR BRAKE DRAIN CUP.

(Application filed Mar. 5, 1901.)

(No Model.)

UNITED STATES l PATENT Grates;

PETER JACOBSON, OF MILWAUKEE, WISCONSIN.

RAILWAY AIR-BRAKE DRAIN-CUP.

SPECIFICATION forming part of Letters Patent No. 680,330, dated August13, 1901.

Application filed March 5, 1901. Serial No 49,671. (No model.)

new and useful Improvements in Railway.

Air-Brake Drain-Cups; and I do hereby declare that the following is afull, clear, and exact description thereof.

My invention has for its object to provide simple,- economical, andreadily-separable drain=cups, of the kind utilized in railway air-brakeequipment between each carsection of train pipe and a triple valve, saidinvention consisting in certain peculiarities of construction andcombination of parts hereinafter particularly set forth with referenceto the accompanying drawings and subsequently claimed.

Figure 1 of the drawings represents a longitudinal section of adrain-cup in accordance with my invention coupled to train andtriple-valve pipes,- the plane of the view being indicated by dottedline 1 l in the second figure. Fig. 2 of said drawings represents adetail front elevation of one of the cup sections having a strainertherein, partly broken away, the coupling-bolts appearing in this viewbeing in section on the plane indicated by dotted line 2 2 in the firstfigure.

Referring by letter to the drawings, A B represent two sections of acylinder embodied in my improved drain-cup, the meeting ends of thesecylinder-sections being annularly flanged, as herein shown. Apacking-gasket C is interposed between the flanges b c of thecylinder-sections of the cup, and by means of nuts d, run on bolts e,extending through said flanges and interposed gasket,

this joint of said cylinder-sections is made air-tight.

The head of cylinder-section A- of the cup is provided with a nipple f,with which a triple Valve pipe D has screw-thread union, and a branch Eof a car-section of train-pipe is likewise coupled to a nipple g, withwhich the other cylinder-section B of said cup is provided.

Arranged in the cylinder-section A of the cup is a perforate diaphragm Fof preferably coarse-mesh strainer material, and between this diaphragmand a strainerdia-' phragm G of very fine mesh is a mass H of sponge orother suitable absorbent material, this fine-mesh strainer being made tofit an annular recess h in the flanged end of said cylinder-section ofthe cup flush against the packing-gasket C aforesaid. The fine-meshstrainer-diaphragm intercepts the greater portion of gritty impuritieswith the air. passing through the cup from the train-pipe to triplevalve, the very minute particles of such impurities and moisture withsaid air being caught by the absorbent material II between said finemesh diaphragm and coarse-mesh diaphragm F, the sole function of thiscoarse-mesh diaphragm being to pre-' vent displacement of said absorbentmaterial without interference with the flow of said air,

The particlesof gritty material separated from the air by fine-meshstrainer G accumulate in the cylinder-section B of the cup, and

this cup being separable the accumulation may be readily removed and thestrainer, absorbent material, anddiaphragm contents of cylinder-sectionA of said cup as readily cleaned whenever necessary or desirable,

Having thus described my invention, what I claim as new, and desire tosecure byLetters Patent, is

Arailway air-brake drain-cup comprising a separable cylinder havingopposite headnipples attachable to train and triple-valve pipes, and anair-strainer consisting of a coarse-mesh diaphragm, a backing ofabsorbent material and a fine-mesh diaphragm back of the absorbentmaterial all confined in the triple; valve pipe-section of the cylinder,the whole of the train-pipe section of said cylinder being in rear ofthe fine-mesh diaphragm and constituting an accumulator for grittyparticles separated from air in its passage from one to the other ofsaid pipes. V

In testimony that I claim the foregoing I have hereunto set my hand, atMilwaukee, in

the county of Milwaukee and State of WVisconsin, in the presence of twowitnesses.

PETER JAGOBSON.

Witnesses:

N. E. OLIPHANT, B. O. RoLoFF.

